Excavator



FIG. 1 is a perspective view of an excavator showing our new design.

FIG. 2 is a left side view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line representations of environmental structure in FIGS. 1-7 is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for an excavator, as shown and described. 